Heating device.



Patehted Ian. I, 19m.

- 1 F. .1. DDYLE.

HEATING DEVICE.

(Application filed June 51,1699. Renewed June 2 I p I wgssis= do; z 6' INVENTOR M i ATTORNEY UNITED STATES PATENT QFFIcE.

FRANCIS J. DOYLE,- OF DENVER, COLORADO.

HEATING DEVICE.

SPECIFICATION forming part of Letters Patent No. 664,932, dated January 1, 1901.

Application filed June 21, 1899. Renewed June 21. 1900. Serial Ne.21,l28. on model.)

To all whom it may concern:

Be it known that I, FRANCIS J. DOYLE, of

2 Denver, in the tate of Colorado, have invented certain new. and useful Improvements in Heating Devices, of which'the following isa full description. 1 To.

The accompanying drawings illustrate the invention, of which- Figure 1 is a vertical section of the devit e, showing all the parts when in'use; Fig. 2, a horizontal or cross section taken on line or w of Fig. 1; and Fig. 3, a cross-section taken on line y y, Fig. 1. This heating device may be used as a furnace or radiator and will serve for lighting purposes when proper materialis used, it may' be adapted for solid or liquid fuel or gas, and its objectis to produce a combustion as nearly perfect as possible in a mechanical device. To these ends it is constructed to deliver suppliesof air properly and automatically heated and mixthe sam with the fuel-gases at different points, which supplies are conducted to circulate through independent conduits, each conduit receiving heat from some part of the heater, and finally uniting the air from the conduits in a combustion-chamber.

Viewing Fig. l, A is a fire-pot which, as shown, is suitable for any solid fuel, but which may be adapted for liquid fuel or agas jet or jets after the manner well known and in common use and need not be described,

all-of which are'included under the general term of fire-pot. It is provided with-the usual grate a and an outlet for the flame and f eel-gases (shown at a which are discharged into a mixing-chamber 13. Within this mix- 7 iug-chamber is placed a partition 0, preferably hollow. This partition is located between the inner walls of the mixing-chamber and the outer walls of the combustion-chain ber, forming thereby a circulatin-gpassage through which the fuel-gases are guided and discharged into the combustion-chamber F.

A conduit for the heated air is shown at E,

- located adjacent to the fire-pot to receive heat therefrom. The heated air from this conduit joins the escaping products of combustion from the fire-pot at the entrance to the mixing-chamber and proceed together to the com bustion-chamber F. The-hollow partition 0 is also supplied with heated air from the conduit E by means of the tubes e, and arranged upon the outer walls of the'hollowpartition are a series of hollow cone-shaped projections 0 which open into the hollow 'partition at their bases and are provided with apertures or punctures o? to permit the escape of the heated air in the hollow partition into the mixingchamber. Upon the inner walls of the mixing-chamber are also arranged a series ofi hollow projections of the like character diwhich are provided with similar punctures and admit the heated air into the mixing-chamber, which is inclosed by the walls of the druTn' H.

breakers and also form a tortuous passage for the gases and products of combustion.

A flanged cup without bottom G may be bustion-ch amber leaves a space g for addi- 5 By locating the partition in the tnixing-chamher it will be-seen that the projections act as 1 tional heating edect. A radiating-drumiH surrounds the combustion-chamber, andthe remaining products of combustion are led therefrom to the chimney.

The space 9 is supplied with air from one or more tubes J, passing up within the radi- 7o seated over and extending down into the comating-drum and discharging the heated air into this space, which passes thence into the combustion-chamber and thenceto the chimney.

Below the fire-pot is shown the ash-pit K, Y

of the channel E. The outer wallof this channel is provided with the ash-door K and the damper K arranged to open or close to ad-v mit or shutoff the air and to supplyjt', if dc"- sired, to one channel, and thence to the other channel E, to the mixing-chamber and circusurrounded by a channel, the continuationv lating-passage, and to the combustion-chambe'r, radiating-drum, and chimney.

m is a revertible line containing three passages or conduits 1, 2, and 2. The two passages 2 2 lead direct from" the drum H down to the chamber L beneath the fire-pot, conducting the heated air. into this chamber,

wherein it circulates andescapes through the passage 1 into the chimney. (See Fig. 3.) The dampers 'n n, located inthe channels 2 2, may be opened or closed. When opened,

the course of the heated air or products of combustion is that above described-namely,

through the circulatingpassages and combnstion-chamber; but when closed the draft may be direct from the fire-pot to the chimney. This is accomplished by the passage 0, leading direct from the fire-pot to the chimney, and by placing therein the damper P it will be seen that when this damper is open and the dampers n n closed the draft is direct from the fire-pot to the chimney. This arrangement is very useful when the fires are first started.

The apparatus as above described and illustrated shows a heating device of great capacity to consume the fuel-gases and give intense heat by producing almost perfect combustion. It is provided with a mixing-chamber and a combustion-chamber with separate and distinct conduits for the heated air uniting and joining to pass through the mixing and combust-ion chambers,'while fresh hot air is supplied at intervals all along the line of passage, with breakers and mixers well distributed throughout.

The device may be used as a stove or as a furnace, and many specific arrangements of it may be made without changing its leading features.

What I claim, and desire to secure by Letters Patent, is-

1. In a heating apparatus a fire-pot having an outlet into a mixing-chamber, provided with a circulating-passage to receive the products of combustion from said fire-pot, in combination with a conduit for air located adja cent to and heated by the Walls of the fire-pot, arranged to discharge its heated air and mingle the same with the products of combustion at the entrance to the circulatimg -passage means for discharging heated air into the circulating-passage at other points and a combustion-chamber adapted to receive the heated air and products of combustion from the circulating-passage, provided with an outlet to the chimney substantially as described.

2. In a heating apparatus a fire-pot having an outlet into a mixing-chamber wherein it dischargesi ts products of combustion, in combination with means forinjecting a supply of heated air to these products and unite them at the entrance to the mixing-chainber-a hollow partition in the mixing-chamber, and means for supplying it with heated air and mixing-chamber, punctured at intervals to provide outlets for heated air into the circulating-passage-a conduit for the air located adjacent to and heated by the walls of the firepot, said conduit provided with two outlets for the discharge of its heated air, one of them discharging direct into the circulating-passage and the other into the hollow partition substantially as described.

4. In a heating apparatus, a fire-pot provided with an outlet-intoa mixing-charnberfor the heat and products of combustion, means for supplying heated air at intervals to the mixing-chamber, a radiating-drum surrounding the mixing-chamber having an outlet to the-chimney, and a tube as J having an inletapertur'eal the bottom of the radiating-drum, and passing up between the drum and the mixing-chamber to discharge the heated air into the space between the mixing-chamber and the walls of the drum.

5. In a heating apparatus a fire-pot providcd with an outlet into a mixing-chamber, adapted to receive the products of combustion from the fire pot, a combustion-chamber to receive the products of combustion from the mixing-chamber, a radiating-drum surrounding the mixing-chamber, in combination with means for heating and introducing asupply of air at different points into the mixing and combustion chambers, an ash-pit, a chamber below the ash-pit, and a revertible flue leading from the drum to the chamber, means for discharging the heated products through the line into the chamber and a conduit from said chamber through the fine to the chimney substantially as described.

Signed at Den ver,in the county ofArapahoe and State of Colorado, this 22d day of April,

FRANCIS J. DOYLE. Witnesses:

. DAVID P. GIBBoNs,

C. F. DOYLE. 

